| A | B |
|---|
| Sonar | Sound navigation |
| Ear | human organ that detects sound |
| Outer | The ______ ear collects sound waves and sends them into the ear canal |
| Cochlea | fluid in the ear |
| Nerve Fibers | sends electric nerve impulses to the brain |
| Constructively | making the sound louder |
| Destructively | Makes sound softer |
| Sound | A form of energy that causes particles of a medium to vibrate back and forth |
| Longitudinal | Sound is a _______ wave |
| Medium | The speed of sound depends on the properties of the ______. |
| Faster | Sound travels ______ at higher temperatures |
| Frequency | Determines the pitch of a sound |
| Doppler Effect | A change in the frequency and pitch of a sound due to the relative motion of the source |
| amplitude | Determines a sound wave's intensity |
| Timbre | Quality of sound |
